HTGR Knowledge Base

Conference Article: Model experiments on depressurisation accidents in nuclear process heat plants (HTGR)

Fritsching, G.; Wolf, G. (Internationale Atomreaktorbau G.m.b.H. (INTERATOM), Bergisch Gladbach (Germany, F.R.))

Abstract

The analysis of depressurisation accidents requires the use of digital computer programs to find out the dynamic loads acting on the plant structures. Because of the importance of such accidents in safety and licensing procedures of nuclear process heat plants, it is necessary to compare these computer results with suitable experiments to show the accuracy and the limits of the programs in question. For this purpose a series of depressurisation experiments has been started at INTERATOM on a small scale model of a primary loop of a nuclear process heat plant. Using the results of these experiments three different computer programs were tested with good success. The development of the experimental program and the estimation of the results was carried out in co-operation with KFA-Juelich and the Technische Hochschule Aachen.

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key words: computer calculations; depressurization; h codes; htgr type reactors; leaks; measuring methods; p codes; primary coolant circuits; reactor accidents; reactor licensing; reactor safety; reactor simulators; reactor vessels; accidents; analog systems; computer codes; containers; cooling systems; functional models; gas cooled reactors; graphite moderated reactors; licensing; reactor components; reactor cooling systems; reactors; safety; simulators
Reference:
International Atomic Energy Agency, Vienna (Austria). International Working Group on Gas-Cooled Reactors. Specialists meeting on gas-cooled reactor safety and licensing aspects, Lausanne, Switzerland, 1-3 September 1980. Summary report. Jan 1981
International Atomic Energy Agency, Vienna (Austria). International Working Group on High-Temperature Reactors.
IWGGCR--1, pp:95-101